The dates fall on different days of the week every year. The months all have different numbers of days, with no rhyme or reason. There’s plenty of inefficiency built into the modern calendar. But according to Johns Hopkins astronomer Richard Conn Henry, that doesn’t have to be the case. According to his proposed calendar, eight of the months would have 30 days, with 31 days every third month. Every few years, an antire week would be added to make up for the lost time. But, on the upside, years would work like clockwork. Holidays would fall on the same day every year. Christmas and New Years would both fall on a Sunday. And the plan would save money by making interest calculations much easier. Aside from centuries of convention, I can’t image what would stand in Henry’s way!